Phase diagrams of the diluted mixed-spin Ising model on a honeycomb lattice

Z.H. Xin, G.Z. Wei and T.S. Liu

Physica A: Statistical Mechanics and its Applications, 1998, vol. 248, issue 3, 442-453

Abstract: The magnetic properties of diluted mixed-spin-12 and spin-1 Ising magnetic systems with crystal-field interactions on a honeycomb lattice (z = 3) are investigated by using the effective-field theory with correlations. The phase diagrams are given for both ferromagnet and ferrimagnet. The influence of crystal-field interaction, D, and the concentrations of magnetic atoms, Pα(α = A or B represent the two sublattice), on the properties of such a system is discussed. The results show that the reentrant phenomena and two-compensation point exist. Especially, the independent modulation of PA and PB may result in some interesting phenomena, such as three thresholds exist when PA = 1.0 and seven thresholds exist when PB = 1.0.

Keywords: Mixed-spin-12 and spin-1 Ising model; Independent dilution; Reentrant phenomenon (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:248:y:1998:i:3:p:442-453

DOI: 10.1016/S0378-4371(97)00534-7

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